BB ALPHA for BB86 — Shimano Road

The BB ALPHA for BB86 Shimano Road is engineered to eliminate the compromises of traditional press-fit bottom brackets. Precision-machined from aluminum and designed as a threaded, two-piece system, it delivers improved alignment, durability, and a noticeably quieter ride.

Built specifically for BB86 frames and 24mm Shimano road cranksets, BB ALPHA replaces plastic press-fit cups with a mechanically joined structure that reinforces the bottom bracket shell while maintaining exact bearing alignment. The result is smoother power transfer, increased bearing life, and zero creaks—mile after mile.

Ideal for riders who demand reliability, silence, and efficiency from their drivetrain.

Key Features

• Designed for BB86 frames
• Compatible with Shimano 24mm road cranksets
• Thread-together aluminum construction for improved shell stability
• High-quality sealed bearings for smooth, long-term performance
• Eliminates common press-fit issues such as creaking and premature wear
• Precision fit for consistent power transfer

Ideal For

• Performance road builds
• Riders upgrading from plastic press-fit systems
• High-end frames where silence and reliability matter